Re: 47 Custom Super Throttle Rod Return Spring

Posted by HH56 On 2014/8/11 19:50:04

The O'Reilly spring should work if the tension is high enough. The way the spring mounts to the acc pedal seems to require a bit more tension than I was able to find with a common hardware spring. I bought stronger springs from McMaster and am happier with that choice. It mounts from a small raised tab on the floor metal to the hole in the throttle pivot.

The big question in my mind is how many springs. The 47 2106 illustration only shows the acc spring but that is not EC linkage. The older style EC illustration in the 47 manual shows another by the carb and parts book lists one for the 22 -23 with EC. I didn't have a bracket near the carb but it could have been lost over the years so made one. Haven't permanently installed the spring yet but did see how it felt. I used the same as the other and it was a bit much so if there is a second spring, perhaps the one by accelerator pedal doesn't need to be as strong. Does your car have the manifold bracket?

I can't get a very good angle with photos but maybe these will give some ideas. There is also an adjustment procedure in the Clutch and Electromatic Training manual for the linkage over at the EC control area which seems to be rather important. My throttle wouldn't close fully until I readjusted that piece.

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